var aCity = {
				11: "北京",
				12: "天津",
				13: "河北",
				14: "山西",
				15: "内蒙古",
				21: "辽宁",
				22: "吉林",
				23: "黑龙江",
				31: "上海",
				32: "江苏",
				33: "浙江",
				34: "安徽",
				35: "福建",
				36: "江西",
				37: "山东",
				41: "河南",
				42: "湖北",
				43: "湖南",
				44: "广东",
				45: "广西",
				46: "海南",
				50: "重庆",
				51: "四川",
				52: "贵州",
				53: "云南",
				54: "西藏",
				61: "陕西",
				62: "甘肃",
				63: "青海",
				64: "宁夏",
				65: "新疆",
				71: "台湾",
				81: "香港",
				82: "澳门",
				91: "国外"
			}

			function isCardID(sId) {
				var iSum = 0;
				var info = "";
				if(!/^\d{17}(\d|x)$/i.test(sId)) return "你输入的身份证长度或格式错误";
				sId = sId.replace(/x$/i, "a");
				if(aCity[parseInt(sId.substr(0, 2))] == null) return "你的身份证地区非法";
				sBirthday = sId.substr(6, 4) + "-" + Number(sId.substr(10, 2)) + "-" + Number(sId.substr(12, 2));
				var d = new Date(sBirthday.replace(/-/g, "/"));
				if(sBirthday != (d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate())) return "身份证上的出生日期非法";
				for(var i = 17; i >= 0; i--) iSum += (Math.pow(2, i) % 11) * parseInt(sId.charAt(17 - i), 11);
				if(iSum % 11 != 1) return "你输入的身份证号非法";
				//aCity[parseInt(sId.substr(0,2))]+","+sBirthday+","+(sId.substr(16,1)%2?"男":"女");//此次还可以判断出输入的身份证号的人性别
				return true;
			}